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All results from a given calculation for C2H6O3S (Sulfurous acid, dimethyl ester)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-703.254072
Energy at 298.15K-703.261501
Nuclear repulsion energy329.005436
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3PW91/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3181 3046 9.15      
2 A 3179 3045 13.34      
3 A 3147 3014 23.13      
4 A 3147 3014 3.00      
5 A 3052 2923 35.41      
6 A 3050 2921 13.17      
7 A 1544 1479 0.64      
8 A 1536 1471 26.15      
9 A 1527 1462 19.06      
10 A 1518 1454 9.79      
11 A 1474 1412 19.09      
12 A 1466 1404 1.91      
13 A 1179 1129 1.30      
14 A 1178 1128 3.19      
15 A 1148 1100 2.11      
16 A 1148 1099 0.97      
17 A 970 929 75.34      
18 A 951 911 60.10      
19 A 929 890 66.55      
20 A 560 536 58.93      
21 A 552 529 139.15      
22 A 512 490 7.79      
23 A 416 399 0.19      
24 A 250 240 20.77      
25 A 238 228 3.39      
26 A 237 227 28.00      
27 A 164 157 0.26      
28 A 146 140 2.63      
29 A 89 85 4.65      
30 A 64 61 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 19275.4 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 18460.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3PW91/6-31G
ABC
0.12652 0.07318 0.06558

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 -0.897 -0.360
O2 -0.000 -1.027 1.252
O3 1.413 0.183 -0.750
O4 -1.412 0.183 -0.751
C5 1.889 1.024 0.345
C6 -1.890 1.023 0.345
H7 2.970 1.094 0.206
H8 -2.970 1.093 0.205
H9 1.431 2.015 0.282
H10 1.670 0.565 1.316
H11 -1.670 0.565 1.316
H12 -1.433 2.015 0.282

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.61661.82051.82052.78492.78503.61963.61933.30732.78082.78063.3081
O21.61662.73272.73262.93212.93193.79643.79573.49872.30792.30743.4992
O31.82052.73272.82561.46113.58022.04134.57762.10322.11713.73093.5390
O41.82052.73262.82563.57921.46124.57672.04143.53693.73072.11722.1031
C52.78492.93211.46113.57923.77951.09144.86211.09361.09613.71773.4677
C62.78502.93193.58021.46123.77954.86211.09143.46683.71821.09611.0936
H73.61963.79642.04134.57671.09144.86215.93971.79431.78994.79984.4985
H83.61933.79574.57762.04144.86211.09145.93974.49784.80011.78981.7942
H93.30733.49872.10323.53691.09363.46681.79434.49781.79673.57632.8644
H102.78082.30792.11713.73071.09613.71821.78994.80011.79673.33963.5775
H112.78062.30743.73092.11723.71771.09614.79981.78983.57633.33961.7967
H123.30813.49923.53902.10313.46771.09364.49851.79422.86443.57751.7967

picture of Sulfurous acid, dimethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 O3 C5 115.691 S1 O4 C6 115.699
O2 S1 O3 105.169 O2 S1 O4 105.167
O3 S1 O4 101.803 O3 C5 H7 105.284
O3 C5 H9 109.992 O3 C5 H10 110.964
O4 C6 H8 105.291 O4 C6 H11 110.966
O4 C6 H12 109.984 H7 C5 H9 110.405
H7 C5 H10 109.815 H8 C6 H11 109.814
H8 C6 H12 110.405 H9 C5 H10 110.277
H11 C6 H12 110.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 1.143      
2 O -0.635      
3 O -0.575      
4 O -0.575      
5 C -0.279      
6 C -0.279      
7 H 0.205      
8 H 0.205      
9 H 0.181      
10 H 0.213      
11 H 0.213      
12 H 0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.001 1.831 0.887 2.034
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.848 0.002 0.001
y 0.002 -39.947 4.820
z 0.001 4.820 -48.629
Traceless
 xyz
x 5.440 0.002 0.001
y 0.002 3.792 4.820
z 0.001 4.820 -9.232
Polar
3z2-r2-18.464
x2-y21.098
xy0.002
xz0.001
yz4.820


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 202.947
(<r2>)1/2 14.246